This custom case for the MT6701 magnetic encoder features the following design and manufacturing characteristics:

Structure and Material: PLA or PETG 
The housing encloses the printed circuit board (blue PCB) of the YYC-MT6701 module, securely fastened to the case with corner screws. It leaves the connection pins fully accessible (VCC, GND, DIR, SCL, SDA, GPO, Z, B, A, PUSH).
Shaft and Front Mechanism: At the end opposite the PCB, the shaft protrudes through a 607z bearing fitted into the front face for smooth rotation.
Drive Pulley: The shaft terminates in a toothed pulley (GT2 type), designed to couple directly to timing belts or mechanical transmission systems.